Those are the same proportions I use. I do put in a very small pinch of salt & do 2 minutes (covered) in the microwave then stir then another 40 secconds more.
Your microwave may vary. Worth doing the experiment & watching to see exactly how long the second blast needs to be after stirring.
In my unceasing quest to annoy purists (and, to a limited extent, to make really unhealthy food marginally less deadly), I use about one quarter porridge oats in pancake batter, plus a couple of tablespoons of oat bran - blend them into the pre-egg mix so it’s smooth.